ACSP ACSP - Aruba Certified Switching Professional IPv6 and Tunneling Technologies Questions and Answers 2 — Questions and Answers
Question 1: On AOS-CX, which global configuration command must be issued to enable IPv6 unicast routing?
- ipv6 unicast-routing (Correct answer)
- ip routing ipv6
- ipv6 routing enable
- enable ipv6 routing
Correct answer: ipv6 unicast-routing
The `ipv6 unicast-routing` command enables IPv6 routing globally on AOS-CX, allowing the switch to forward IPv6 packets between interfaces.
Question 2: Which AOS-CX command assigns a static IPv6 address to a VLAN interface?
- ip address ipv6 2001:db8::1/64
- ipv6 address 2001:db8::1/64 (Correct answer)
- set ipv6 address 2001:db8::1/64
- address ipv6 2001:db8::1 prefix-length 64
Correct answer: ipv6 address 2001:db8::1/64
The `ipv6 address 2001:db8::1/64` command is entered under a VLAN interface context to assign a static IPv6 address on AOS-CX.
Question 3: What is the role of OSPFv3 in an IPv6 network running on AOS-CX?
- To provide stateful DHCPv6 address assignment services
- To dynamically route IPv6 traffic using the same link-state algorithm as OSPFv2 (Correct answer)
- To translate IPv6 addresses to IPv4 for legacy compatibility
- To assign IPv6 addresses via SLAAC on router interfaces
Correct answer: To dynamically route IPv6 traffic using the same link-state algorithm as OSPFv2
OSPFv3 is the IPv6 extension of OSPF that uses the same link-state algorithm but operates over IPv6 link-local addresses to provide dynamic IPv6 routing.
Question 4: Which AOS-CX command displays the IPv6 neighbor cache, equivalent to the IPv4 ARP table?
- show ipv6 arp
- show ipv6 neighbors (Correct answer)
- show arp ipv6
- show ndp table
Correct answer: show ipv6 neighbors
The `show ipv6 neighbors` command displays the IPv6 neighbor cache that maps IPv6 addresses to MAC addresses, maintained by NDP rather than ARP.
Question 5: In what scenario is DHCPv6 stateless mode used in conjunction with SLAAC?
- When SLAAC alone cannot assign any addresses to hosts
- When hosts need additional parameters such as DNS server addresses that SLAAC RA messages do not provide (Correct answer)
- When the network requires centralized tracking of all IPv6 address assignments
- When hosts must use only server-assigned addresses and SLAAC is disabled
Correct answer: When hosts need additional parameters such as DNS server addresses that SLAAC RA messages do not provide
DHCPv6 stateless mode distributes configuration parameters like DNS server addresses to hosts that use SLAAC for address assignment, combining the benefits of both.
Question 6: Which ICMPv6 message type does a router send periodically to inform hosts of network prefixes, the default gateway, and other configuration parameters?
- Neighbor Solicitation (type 135)
- Router Advertisement (type 134) (Correct answer)
- Router Solicitation (type 133)
- Redirect (type 137)
Correct answer: Router Advertisement (type 134)
Router Advertisement (ICMPv6 type 134) messages are sent periodically or in response to Router Solicitations to deliver prefix and gateway information used by SLAAC.
ACSP ACSP - Aruba Certified Switching Professional IPv6 and Tunneling Technologies Questions and Answers 2
On AOS-CX, which global configuration command must be issued to enable IPv6 unicast routing?